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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555401272

Certificate GIA 6555401272

Diamond specifications and retailer prices

From $3,118 NZD
As of November 6, 2026
Save $5,331 NZD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,450 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555401272. Listed at 21 retailers as of November 5, 2026, with prices from $3,118 to $8,450, a $5,331 spread on the same certified stone. NZ Jewellers lists it at $8,450. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555401272
Dimensions6.35 × 6.39 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.35 mm6.39 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555401272
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,761 NZD|Low: $3,118 NZD|High: $7,117 NZD|Avg: $4,247 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$3,118 NZD
Retailer 8$3,131 NZD
Retailer 6$3,373 NZD
Retailer 9$3,560 NZD
Retailer 1$3,761 NZD
Retailer 2$3,889 NZD
Retailer 4$4,333 NZD
Retailer 5$4,365 NZD
Retailer 7$4,641 NZD
Retailer 10$4,858 NZD
Retailer 11$7,062 NZD

25 data points across 11 retailers

21 retailers$3,118 NZD to $8,450 NZD

A
Cheapest Retailer
-
$3,118 NZD
A
Retailer 2
-
$3,131 NZD
View
A
Retailer 3
-
$3,373 NZD
View
A
Retailer 4
-
$3,560 NZD
View
A
Retailer 5
-
$3,650 NZD
View
A
Retailer 6
-
$3,729 NZD
View
Final sale: no returns
A
Retailer 7
-
$3,761 NZD
View
A
Retailer 8
-
$3,889 NZD
View
Retailer 9
-
$4,042 NZD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$4,042 NZD
View
B+
Retailer 11
-
$4,228 NZD
View
B+
Retailer 12
-
$4,289 NZD
View
B+
Retailer 13
-
$4,333 NZD
View
B+
Retailer 14
-
$4,365 NZD
View
B+
Retailer 15
-
$4,408 NZD
View
B+
Retailer 16
-
$4,641 NZD
View
B+
Retailer 17
-
$4,662 NZD
View
B+
Retailer 18
-
$4,858 NZD
View
B
Retailer 19
-
$6,027 NZD
View
B
Retailer 20
-
$7,062 NZD
View
Most Expensive
B
NZ Jewellers
856f0a8c-3b65-4e36-9112-446ac20fed2e · Nov 5
$8,450 NZD
$4,750 USD
View
20 more retailers have this diamond
Prices start from $3,118 NZDSave up to $5,331 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
$3,118 NZD